NCT Programming: Circular Drilling with G81 Cycle and G16 Polar Coordinates
NCT program example to show how G81 drilling cycle can be used to drill in a circle using G15 G16 Polar Coordinate Commands and G81 Drilling Cycle.
G Codes
| G Code | Function |
|---|---|
| G15 | polar coordinate command cancel |
| G16 | polar coordinate command |
| G81 | drilling, spot boring cycle |
NCT Programming Example

%O7073(7.3) N100 T1 N110 G54 G0 X0 Y0 N120 G43 Z50 H1 N130 S1000 M3 M8 N140 G16 G0 X50 Y-10 N150 G81 X50 YI10 R2 Z-10 L36 N160 G80 G15 N170 G0 Z100 N180 M30 %
CNC Machine
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- Efficient Circle Part Drilling with G81/G16 in NCT Programming
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